Hmm, benjolan di dada memang buat cemas! A few of my mum friends pernah alami lumps during pregnancy and nursing, and most disappear after weaning, usually hormon-related or blocked ducts je, but honestly this one kena check dengan doctor properly la, especially kalau it appeared during pregnancy and stayed through nursing. Better safe than sorry kan, terutama anything dada-related, your GP or gynae boleh do a quick examination dan give you peace of mind.